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extension-modulesC modules in the Modules dirC modules in the Modules dirtype-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump
Description
Crash report
What happened?
Here's a minimal reproducer
import zoneinfo
from datetime import date
class MyDateTime:
def __init__(
self,
year: int,
month: int,
day: int,
hour: int = 0,
minute: int = 0,
second: int = 0,
) -> None:
self.ordinal = date(year, month, day).toordinal()
self.hour = hour
self.minute = minute
self.second = second
def toordinal(self) -> int:
return self.ordinal
def whoopsie():
tz_berlin = zoneinfo.ZoneInfo("Europe/Berlin")
dt = MyDateTime(1995, 9, 2, 14, 34, 56)
print(tz_berlin.utcoffset(dt), flush=True)
If I run whoopsie
, I get one of the following outcomes:
- It prints
02:00:00
- It prints
01:00:00
- It prints
00:53:28
- It segfaults
<project dir>/venv313/bin/python -X dev <project dir>/segfault.py
Fatal Python error: Segmentation fault
Current thread 0x00007fd62be47b80 (most recent call first):
File "<project dir>/segfault.py", line 27 in whoopsie
File "<project dir>/segfault.py", line 34 in <module>
I've tried running the test in a loop and it seems to always spit out the same result within a single run. So I assume some global state, memory layout, or or such is involved.
CPython versions tested on:
3.9, 3.13
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
Python 3.13.0 (main, Oct 10 2024, 13:32:18) [GCC 11.4.0]
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extension-modulesC modules in the Modules dirC modules in the Modules dirtype-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump
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